Lifting-jack for motor-cars.



2 "U. T IQ! Y. m .MJ mmmwmm m F mmam w E Mt JWN H D WNLC S .l 0 8 z m pnmm PATENTED AUG. 25, 1908.

LIPTING JACK FOR MOTOR CARS.

APPLICATION FILED JULY 15,1907.

I. P. NELSON, A. L. MEEKS, T. 0.. SHAPPELL & J. A. SMALLEY.

WITNESSES: 87611.1 :6. m

U ITE STATES PATENT orrro z'.

' IRA P. NELsoN, ALLEN L. MEEKS,1TORENGE o. SHAPPELL, AND-JAMES A.sMALLEY, or

- MONTPELIER; INDIANA.

gramme-150x FOR moron-cans.

. ,Patented Aug. 25 1998.-

Application filed July 15, 1907. ,Serial No. 383,725.

State 0 Indiana, have invented a new and useful Lifting-Jack forMotor-Cars, of which the following is a s ecification.

Our invention re ates to improvements in lifting-jacks for motor-carsand other heavy vehicles and has especial reference to devices of thischaracter for automobiles ofmodern construction having Wheels .withpneumatic resilient tires. v

In caring for, handling, and repairing automobiles it is'very desirableand necessary'to accomplish the raising or elevating easily and quicklyof the vehicle or a portion thereof.

Objects of our invention are to provide a device to attain these resultsand other useful urposes, and are accomplished by the -mec anismdescribed in this specification and illustrated in the accompanyingdrawings.

Other obj ect s are to provide a device of the kind described which willbe economical of manufacture, durable, easy of manipulation and highlyefficient.

Our invention consists essentially of op- I ingedly secured together,and having t eir' per and lower ends pivotally secured to a head-blockand base-b ock respectively, and

positely disposed pairs of bars, each air hand, disposed and securedwith reference to the said hinged bars in such manner that the distancebetween thesaid head-block and base-block may be varied at pleasure, and

may be locked in either of two extreme positions and retainedimmovablyin any desired intermediate position the entire device being adapted tobe secured to the axle-beam or frame work of the vehicle.

' Our invention consists further in the novel and ingenious combination,construction and arrangement of parts, illustrated in the accompanyingdrawings, described in this specification and defined in the appendedclaims.

Similar characters of reference refer to cor responding parts throughoutthe several inoperative osition. Fig. 5 and Fig. 6 are side views omodified forms of head-blocks. Fig. 7 is a longitudinal centralsectional view 'of the lift-blocks and connections, taken on the line 77Fig. 2. Fig. 8 is a transverse sectional view taken on the line -.88Fig. 1. Fig. 9 is a transverse sectional view of the head-block taken onthe line 9-9 Fig. 1. Fig. 10 and Fig. 11 are side views of our inventionconnected to the axle-beam of an automobile, and in the lockedinoperative position. 1

A designates the head-block having the two centrally depending legs B,and the four depending bosses B so formed that the re-v cesses' A andthe cavities M are provided the purposes whereof will be hereinafterdescribed.

C designates the head-block cap; the headblock and the head-block capare provided with transverse semicircular grooves so disposed that a'suitable opening for the. airlebeam of the vehicle is provided.This'headblock cap is secured by the bolts D and by which bolts thedevice may be fastened securely to the axle-beam.

The oppositely disposed pairs of bars E are ivotally secured to thehead-block by the bolts F, and will reside movably in the recesses A theother ends of these pairs of bars E, and the up er ends of similarlydisposed airs of bars are pivotally secured by the olts H, to theliftblocks 'I. These liftblocksare provided with the flanges I thefunctions of which will be hereinafter described. The lower ends of theairs of bars the base-block are provided so that when the device isbrought to the locked inoperative position as shown in- Fi s. 3 and 4',these noses will snu ly occupy t e cavities M in the head-block. dt willbe observed that the lower portion of the head-block and the upperortion of the base-block are hollowed out ongitudinally so thatasuitableclearance and opening is provided for the hit-bar N when thedevice is in the locked inoperative position as shown in Fig. 3.

The lift-blocks I are provided with the transverse bolts -H, upon whichare ivotally connected the bars E and G, and t e facin surfaces of theselift-blocks are machin d cross-section, it is obvious that this opening-I sufficiently smooth so that a true jointure will be ell'ected' whenthey are brought together.

The lift-bar N is threaded and passes through a properly threadedaperture in one of the lift-blocks, and is so shoulderedand iitted inthe other li'ltblock that-it may freely revolve but may not movelongitudinally therein. The hand wheel properly secured to. the saidlift-bar a-llords eflicient means whereby the lift-bar may bemanipul'ated easily by the hand. A crank or a crank-wheel could beused,as well.

From the foregoing description of the con struction of. our inventionthe operation and utility of the same will be apparant.

The preferred embodiment of our inven tion is the construction as seenin the drawings, and in this l'ornr our newly Invented lifting-jack isapplicable to be connected to the axle-l' eams of vehicles and isintended especially for connectionto automobiles having pneumatic tiredwheels of modern con struction;

The width of our improved devices may be.

varied so that the invention 'may be adapted to be connected tosubstantially all styles and patterns of machines now in use.

To apply our invention the head-block cap (3 is removed, the head-blockis then placed in proper position underneath the axle-beam and thehead-block cap replaced and drawn by the bolts 1), directly intoengagement with the axle-beam. While we have shown the transverseopenings of a form provided for the reception of an axle wlnch is roundin maybe varied inform to fit axle-beams of various forms. I v

The normal positionsof the parts when in inoperative positionare asshown in Fig. 3 and Fig. 10, the base-block having ,been drawn by therevolutions of the lift-bar, into locked engagement with the head-block;in

this position the device occupies compara- .blocks approach each otherthe base-block descends to and meets the surface below,

upon which the vehicle rests. By further rotation of the hand wheel thelift-blocks are drawn nearer and. nearer together and the cornerof thevehicle is supported upon the head bloek as shown by the dottedlineposition of the jack, in Figs. 10 and 11. The

hand-wheel O is further revolved sufiiciently to bring the lift-blocksinto position with thcirfaces snugly together, the flanges I will snuglyengage the edges of the bars G, and the bars 112 will be brought intosnug contact with the legs B and the jack will be locked in rigidupright position. The bosses B of the head-block, and the extended lowerportions of the lift-blocks are provided so that the bars E and G reseetivel will have sullicient bearing on their inner faces to render thede-- vice rigid and substantial transversely. 'lhe bolts F, H and P, asshown in Fig. 8 are shouldered and each is of such length from shoulderto shoulder against which the nuts are screwed, that when the nuts arescrewed into secure position the bars will be retained in correctosition but will at the same -'lime be pivotal y free. The lifting ofthe vehicle free from support upon its remaining tires is quicklyaccomplished by the manipulating ol' the remaining jacks 1n the mannerabove described.

When it is desired to return the vehicle to" its original position, thehaml-wluaeloi thejack is again revolved this time in a direcl ionopposite, which causes the lift-blocks to separate and the head-block todescend, coincident with the release of the weight the basebloekdescends and issoon returned to its shown in Fig. 10, and the jack isthus packed, locked up, and out of the way, but in readiness forinnnediate use at any time.

We have contemplated the employment of the modified form of thehead-block as shown in Fig. 5, wherein the head-block cap is hingedlysecured on one side so that the manipulation ofbut one bolt is necessaryin connecting the jack to the axle-beam. The

locked engagement with the head-blockas modified form of head-block asshown in Fig.

6 is employed where it is desired to use our invention for the purposesof an ordinary 'ack.

1 What we claim as our invention and desire to secure by Letters Patent,is-

, 1. A device of the kind described compris-. ing a head-block, abase-block, oppositely disposed airs of bars pivotally comiected to thesaid cad-block and to the said baseblock, a pair of lift-blocks disposedopposite each other and having the meeting ends of the said pairs ofbars' pivotally connected thereto, means connecting the said liftblocksto vary the distance between and maintain at varied distances apart, thesaid lift-blocks, including a threaded shaft adapt ed to engage one ofsaid lift-blocks and to move rcvolubly, but not longitudinally in theother of the said lift-blocks, and having a crank thereon, substantiallyas described.

2. A device of the kind .descri'bed comprisin a head-block havingrectangular. verti eaTly disposed protrusions on its sides, a baseblock,oppositely disposed-pairs of bars pivotally connected to thesaidhead-block on either side of and adapted to register, with saidprotrusions, said pairs of bars being also pivotally connected to thesaid base-block a 'pair of lift-blocks disposed opposite .each

other and having the meeting ends of said pairs of bars pivotallyconnected thereto there being flanges onthe outer sides of saidlift-blocks; adapted to register with the said pairs of bars, meansconnecting the said liftlocks to vary the distance between and.

maintain securely together and at varied distances a art, the saidlift-blocks, substantially as escribed.

3. A device of the kind described compris mg a head-block havingrectangular vertica y disposed protrusions on its sides, a baseblock,oppositely disposed pairs of bars pivotallyconnected to thesaid-head-block on either side of and adapted to register with saidprotrusions, said pairs of bars being also pivotally connected to thesaid base-block, a

e pair of lift-blocks disposed opposite each other and having themeeting ends of said pairs of bars plvotally connected thereto names tothis specification in the there being flanges on the outer sides of said7 lift-blocks adaptedtoregister with the said pairs of bars, meansconnecting the said liftlocks to vary the distancebetween and maintainsecurely together and at varied distances apart, the sai lift-blocks,including a threaded shaft adapted to engage one of said lift-blocks andto move revolubly but not IRA P. NELSON.-

. ALLEN L. MEEKS.

TORENCE- O. SHAPPELL. JAMES A. SMALLEY.

Witnesses J osnrn P. HORTON, THOMAS L. RYAN.

